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Absence d’effet hypsochrome dans le spectre ultra-violet de dérivés du fluoranthène

✍ Scribed by G. Geuskens; J. Nasielski


Publisher
Elsevier Science
Year
1960
Weight
311 KB
Volume
16
Category
Article
ISSN
0371-1951

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✦ Synopsis


Hypsochromic shifts produced by substitution in non-alternant aromatic hydrocarbons can be interpreted in terms of simple molecular orbital theory. On that ground, the NH 3 + radical is best suited to bring about hypsochromic shifts. However, no such effect has been observed in fluoranthene, which therefore behaves like an alternant hydrocarbon. This could be ascribed to the reduced conjugation between the benzene and the naphthalene nuclei in this molecule.


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